HP 33S Owner's Manual

9–4 Operations with Complex Numbers
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
¹ c k


4.1689.
Evaluate the expression
z
1
÷
(z
2
+ z
3
),
where z
1
= 23 + i 13, z
2
= –2 + i z
3
= 4 – i 3
Since the stack can retain only two complex numbers at a time, perform the
calculation as
z
1
×
[1
÷
(z
2
+ z
3
)]
Keys: Display: Description:
1
Ï
2
z Ï
3
z Ï
4
¹
c
Ù



Add z
2
+ z
3
; displays real
part.
¹ c ,

1
÷
(z
2
+ z
3
).
13
Ï
23
¹ c ¸



z
1
÷
(z
2
+ z
3
). Result is 2.5
+ i 9.
Evaluate (4 – i 2/5) (3 – i 2/3). Do not use complex operations when calculating
just one part of a complex number.
Keys: Display: Description:
Ë
2
Ë
5
z Ï

Enters imaginary part of
first complex number as a
fraction.
4
Ï

Enters real part of first
complex number.
Ë
2
Ë
3
z Ï

Enters imaginary part of
second complex number as
a fraction.
3
¹ c ¸


Completes entry of second
number and then multiplies
the two complex numbers.
Result is 11.7333 – i
3.8667.



HP 33S Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Silver
Digits	10 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157 x 16 x 81 mm